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Shannon Climate

Shannon Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
26.4 26.8 25.1 21.6 18.5 15.7 14.9 15.5 16.5 18.7 22.2 24.3 20.4
Mean Min (°C)
12.6 13.4 12.4 10.8 9.2 7.5 6.5 6.9 7.3 8.2 10.1 11.2 9.6
Mean Rain (mm)
18.9 15.8 31.6 70.4 130.9 167.2 177.6 147.7 133.3 76.3 54.7 29.7 1056.7
Median Rain (mm)
10.8 10.8 19.4 43.4 116.4 150.6 143.6 150.9 132.8 63.2 45.4 15.5 994.4
Mean Rain Days
7.7 7.1 8.9 14.5 18.6 19.2 22.5 19.7 18.9 17.9 13.1 9.5 155.9

Shannon Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
41.0 39.0 41.0 33.1 29.0 22.0 21.0 24.0 28.0 30.3 38.0 41.0 41.0
Low Max (°C)
16.5 17.0 11.0 13.0 9.6 8.8 9.7 8.0 10.0 12.0 13.0 15.0 8.0
High Min (°C)
21.0 24.0 23.0 19.0 19.0 14.0 13.9 13.8 14.6 16.5 20.0 21.0 24.0
Low Min (°C)
4.0 6.0 3.0 2.0 0.0 -2.0 -1.0 0.0 0.7 1.0 1.0 3.0 -2.0
High Rain (mm)
27.0 31.0 35.0 62.0 80.0 46.0 47.0 36.0 38.0 50.0 32.0 42.6 80.0

Shannon Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
27.9 28.3 26.9 24.6 19.9 16.5 16.0 17.5 17.8 20.3 24.5 26.9 21.1
Low Mn. Max (°C)
24.1 25.6 22.3 18.6 17.3 14.6 14.0 14.1 14.5 16.4 18.7 20.9 19.6
High Mn. Min (°C)
13.8 15.4 14.7 12.1 11.6 9.1 7.7 8.3 8.3 9.7 12.2 13.2 10.4
Low Mn. Min (°C)
11.4 11.9 10.9 8.6 7.5 5.0 5.1 5.3 5.7 6.8 8.4 9.5 9.1
High Rain (mm)
70.0 36.4 100.8 183.0 208.6 269.0 278.8 206.2 203.4 132.6 151.4 83.2 1357.4
Low Rain (mm)
3.2 2.8 1.0 8.4 66.8 70.2 68.6 31.4 2.4 34.0 15.4 5.0 520.6

Shannon Annual Temperatures & Rainfall

SHANNON

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Shannon Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
0.2 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4
≥ 35.0°C
1.6 1.9 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.0 5.3
≥ 30.0°C
7.4 7.8 5.3 1.0 0.0 0.0 0.0 0.0 0.0 0.2 2.4 4.6 24.5
≤ 2.0°C
0.0 0.0 0.0 0.1 0.3 1.2 2.6 1.1 0.9 0.3 0.1 0.0 5.7
≤ 0.0°C
0.0 0.0 0.0 0.0 0.1 0.2 0.6 0.1 0.0 0.0 0.0 0.0 0.8

Shannon 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
32.0 33.0 30.9 26.0 21.3 18.0 17.0 18.0 19.0 22.0 27.0 30.6 27.0
Low Max
21.0 21.4 19.0 17.0 15.0 13.0 13.0 13.0 13.2 15.0 17.4 19.0 15.0
High Min
16.0 17.0 16.0 14.0 13.0 10.5 9.0 10.0 10.0 11.0 13.0 15.0 14.0
Low Min
9.0 9.3 9.0 7.0 6.0 4.0 3.0 4.0 4.0 5.0 6.0 8.0 5.0

Shannon Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
14 15 16 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014
Years of Maxima
14 15 16 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014
Years of Rainfall
14 15 15 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014

Station Details

SHANNON
Southwest, Western Australia
34.5683°S 116.3367°E 210m AMSL
Commenced 1996
Display Your Local Weather

Weather News

SA weather: Langhorne Creek vineyards welcome winter flooding

06:31 EST

While a wet and stormy winter has many South Australians counting the days until summer, flooding at Langhorne Creek south of Adelaide has grape growers smiling.

Lake Pedder overflows after record wet July quarter

18:30 EST

Lake Pedder in Tasmania's south-west has reached capacity for the first time in 28 years.

Myer redevelopment site flooded after Hobart Rivulet wall collapses

18:07 EST

Water from the Hobart Rivulet has flooded a major construction site in the CBD, leading to road blocks and the closure of the adjacent shopping centre.